How to list Expenses that have not been matched to a Bank Transaction

How to list Expenses that have not been matched to a Bank Transaction

In ZoHo books I use expenses to record invoices I receive. I know I should probably uses Bills for this but Bills was not available in the Free edition I initially used. When I upgraded I contunued to use Expenses.

I'm trying to find a way of listing all Expenses that have not been matched to a bank transation. I can check each one in turn, as when you open the expense, it shows if it has been matched or not. However, this is time consuming. There must be a way of showing this as a column on the Expenses list or in a report but I have not yet found how to do this.